Make sure GetRegEx returns something gnuplot can deal with (a number, not a ?) so that graphs don't bail if something fails in a test.
Make sure GetRegEx returns something gnuplot can deal with (a number, not
a ?) so that graphs don't bail if something fails in a test.


git-svn-id: a4a6f32337ebd29ad4763b423022f00f68d1c7b7@14344 91177308-0d34-0410-b5e6-96231b3b80d8

lodyagin/bare_cxx,lodyagin/bare_cxx,lodyagin/bare_cxx,lodyagin/bare_cxx,lodyagin/bare_cxx